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| author | Kelvin Zhang <zhangkelvin@google.com> | 2020-10-27 15:50:33 -0400 |
|---|---|---|
| committer | Kelvin Zhang <zhangkelvin@google.com> | 2021-01-04 18:51:11 -0500 |
| commit | cf4600e1582f3001a26b4430a5ffbfe23b3ff4d1 (patch) | |
| tree | 05b10c5bf52e457d20c93bf04ce9d2fe8fb205c4 /aosp/dynamic_partition_control_android_unittest.cc | |
| parent | 3265b317b39edea86b5351029092b7728ca8461b (diff) | |
Use string_view for pref interface to reduce copy
If you pass in a static string literal like "Hello World!", then with
parameter type of const string& you need to construct a new string
object, requiring a copy. It will also require a copy if your data is in
another container, for example std::vector<char> . In update_engine, we
store manifest bytes in std::vector, and sometimes we want to save that
manifest to disk. This CL can help us reduce copy of the manifest(up to
2MB).
Test: treehugger
Change-Id: I70feb4c0673c174fd47f02c4bd41994f74cda743
Diffstat (limited to 'aosp/dynamic_partition_control_android_unittest.cc')
0 files changed, 0 insertions, 0 deletions